Shell



J. M. ALDERFER SHELL Nov. 1, 1932.

Filed June 15, 1929 IHHHMIH HHHIIIIII Lllllllllllv I N VEN TOR. can 7. A: viz/ ie.

ATTORNEYS.

Patented Nov. 1, 1932 PATENT oFFicE JOHN M. ALDELRFER, OF SHARON CENTER, OHIO SHELL Application filed June 13,

l The present invention relates to the design and construction of shells or cores, and while the invention is adaptable to many and varied "uses, itis primarily intended for use in the operation of rubber mills. In the calendering or rubberizing operations in a tire factory, for example, the rubberized fabric is rolled up on drums or shells which are mounted adjacent to the calender, and receive the fabric thereon, together with a sheet of liner. These rolls or shells are large and have to be shifted about in the factory after the roll of fabric is built up thereon. They are subjected to rough usage and as they are large and very heavy, the duty required is quite severe. The

usual form of shell at present in use is a metal shell, which by its weight adds materially to the labor required in the handling and transporting of the shells. The metal surface of i the shell is easily dented and the maintenance owing to breakage and other injuries is high.

It is an object of the present invention to construct a form of shell made entirely or principally of wood which will be equally as strong as the present all metal shell, but which will be much lighter and easier to handle. The wooden shell herein shown is capable ofwithstanding the rough usage received in the factories better than the metal shell and has other advantages over the metal shell, in addition to which the manufacture of thewooden shell is less expensive.

In the drawing in which the preferred form of the invention is shown:

Figure 1 is a longitudinal section through a shell, part of the shell being broken away.

Figure 2 is a side elevation showing the manner in which the outer cover is applied to the shell.

. Figure 3 is a section on the line 3-3 of Figure 1; and

Figure 4 is a detail view showing the manner in which the shell is assembled.

It will be appreciated that while the descriptions and drawing are detailed so as to illustrate the preferred form of the invention, the prinicples thereof may be applied to other forms and types of shell which differ therefrom, and that improvements and modifications may be made in the invention as detate together.

1929. Serial No. 370,547.

fined by the prior art and by the claims, and also that the invention is not necessarily limited to the use particularly set forth.

Shells of the type set forth are removably mounted on a shaft or rod which is square in cross section or provided with square portions so that the shafts and the shell will ro- A removable shaft is shown at-l and is received in the central opening of the shell.

The shell comprises a core made up of a plurality, here shown as four longitudinal ribs or webs 2. which extend the length of the shell, being arranged about the central or axial opening so that the inner edge surface portions of the ribs form the square opening to receive the shaft. F or this purpose each of the ribs is provided with a longitudinal groove 0r mortise 4 spaced from the inner edge of the rib, in which mortise the edge of the next rib is seated, being secured therein by glue and by nailing as at 5. When these ribs have been assembled as shown and described, a rigid framework is formed which constitutes the base or foundation from which the shell is built up, the outer edges of the ribs being rounded to conform to the circumference of the shell.

In the spaces between the outsanding webs are located the sets of sector shaped braces or fillers 6, having the outer curved edges and the long and short sides bearing against the outstanding Web portions of the ribs. In assembling the braces on the ribs, starting for example, with the brace 6 this brace is first inserted and nailed as at 7 direct through the two adjacent ribs 2 and 2 The sector 6 is then located in the same transverse place as the brace 6 and nailed through the web 2 with oblique nailing 8 as shown in Figure 4 and through the rib 2 directly. The sector 6 is then nailed in the same manner and the last sector 6 is secured in position by oblique nailing.

Sets of these braces are located along the ribs being spaced apart atsuliicicnt distance to securely brace the ribs at the spaced points. The core of the shell which is now completed, is very strong and yet light and easily handled.

.End plates 12, having central openin alignment with the central openingin the core are then attached to the end of the shell,

the outer perimeter of the end plate being flush with the outer surface of the shell. These end plates may be made of any suitable material, Wood Veneer sheets being especiallyadaptable for this purpose.

What is claimed is: I l. A wooden shell for the .uses and purposes set forth comprising a core composed of four longitudinal ribs arranged at right 5. A shell for the uses and purposes set forth consisting of a core and a cover, the core being composed of a plurality of ribs, the inner edge of each rib being seated against one side of an adjacent rib and secured there to, and braces located between the faces of the ribs, the cover consisting of wooden sheet material Wrapped spirally about the core and secured thereto.

6. A shell for the uses and purposes set forth consisting of acore and a cover, the ,core being composed of a plurality of ribs,

the inner edge of each rib bein seated against oneside of an adjacent rib and secured thereto, the inner edge portion of the ribs defining a non-circular axial opening through the shell, and braces located between the faces of the ribs, the cover consisting of sheet material wrapped spirally about the core and se- JOHN M. ALDERFER.

cured thereto.

angles to one another, each having a mortise therein spaced from theinner edge in which tlie inner edge of an adjacent ribis seated, the

inner edge portions of the ribs defining a square openingad'apted to receive a shaft, and a plurality of sets of sector shaped braces located between the ribs and secured thereto, a cover about the core, said cover beingcomprised of layers'wrapped spirally about the core in alternating directions. and secured thereto, and end plates on thee-ore, the edges of which are flush with the cover. 2. A wooden shell for the uses and purposes set forth comprising a core composed of four longitudinal ribs arranged at right angles to one another, each having a mortise therein spaced from the inner edge in which the inner edge of an adjacent rib is seated, the inner edge portions of the ribs defining a square opening adapted to receive a shaft, and a plurality of sets of sector shaped braces located between the ribs and secured thereto, a cover applied over the edges of the ribs and of the braces, and end plates on the core, the edges of Whichare flush with the cover.

3. A shell for the uses and purposes set forth comprising longitudinal ribs each having a mortise located adjacent its inner edge, the edge of an adjacent rib being seated in the mortise, braces located between the adj acent ribs, and a laminated cover surrounding the ribs.

4. A shell for the uses and purposes set forth consisting of a core and a laminated cover, the core being composed of a plurality of flat ribs, the inner edge of each rib being seated against one side of an adjacent rib and secured thereto, and braces located between the faces of the ribs, the cover consisting of superposed plies of material applied about the core and secured thereto. 

